1056550523 has 4 divisors (see below), whose sum is σ = 1207486320. Its totient is φ = 905614728.

The previous prime is 1056550511. The next prime is 1056550529. The reversal of 1056550523 is 3250556501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1056550523 - 2¹⁰ = 1056549499 is a prime.

It is a super-2 number, since 2×1056550523² = 2232598015303147058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056550523.

It is not an unprimeable number, because it can be changed into a prime (1056550529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75467888 + ... + 75467901.

It is an arithmetic number, because the mean of its divisors is an integer number (301871580).

Almost surely, 2^1056550523 is an apocalyptic number.

1056550523 is a deficient number, since it is larger than the sum of its proper divisors (150935797).

1056550523 is an equidigital number, since it uses as much as digits as its factorization.

1056550523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150935796.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 1056550523 is about 32504.6231019527. The cubic root of 1056550523 is about 1018.5056044759.

The spelling of 1056550523 in words is "one billion, fifty-six million, five hundred fifty thousand, five hundred twenty-three".